AppImage is a "distro agnostic" packaging format (read about Appimage HERE).
These 64-bit packages will work on many recent Linux releases.
They have been tested on the following:
Ubuntu 16.04 - 19.04, Fedora 30, Mint 19.1, Manjaro 18

Installation Procedure 1. download the program file by clicking on the corresponding link
above.
2. move the program file to another location, if desired.
3. using your file manager, right click on the program file or icon, select 'properties'.
4. in the popup window, select 'permissions', check 'allow executing', close.
5. [double] left-click the program file to start the program.

The program should now be available in your system menus, with an icon/launcher.
An 'appname.desktop' file is installed at: /home/<user>/.local/share/applications.
To uninstall, you can simply delete the program file.